nphuongsun93 said:

I'm looking for advise how to clean
This is my attempt
so I'm looking for your opinions, or your ways of cleaning.
dear, sun93
actually you can try read image edit or this one

anyway this is my ......... cleaning's far from perfect but..hope can help

1.duplicate layer....and clean some dirt with clone stamp
2.duplicate layer again ....i change 300dpi into 250dpi....(to make it easier to filter)...
3.then i use box blur 1px
4.duplicate layer again......I use smart blur radius=2 threshold=15
5.give some final touch...on blush (if blur to much use eraser) and eyes(color it use overlay)
6. save into png

my result:

version 2 (skip...step2) :